fix querying within feature collection of polygons

[sbachinin]

Fixes maplibre/maplibre-gl-js#3540

A bit verbose perhaps. But if we need to query stuff within multiple polygons, then Within.geometries has to be an array and therefore some changes are necessary here and there.

Of course this will be thoroughly tested after tests' migration from gl-js.

BTW this bug occurs not only with points but with lines too. (This is fixed here too).

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (86c4898) 92.09% compared to head (c11cfc3) 92.20%.
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #477      +/-   ##
==========================================
+ Coverage   92.09%   92.20%   +0.10%     
==========================================
  Files         100      100              
  Lines        4176     4182       +6     
  Branches     1197     1199       +2     
==========================================
+ Hits         3846     3856      +10     
+ Misses        330      326       -4     

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[HarelM]

I've merged the addition of the expression tests.
Please make sure to add the relevant test to the newly added tests.
Also, I think geometries in WithIn can be a multiploygon, and you can simply add all the polygons to it, I don't think there's a need to change it to be an array of multipolygon.
I think the solution can be simplified by collection all the polygons from the multipolygons and "throwing" it into a single multpoligon and init WithIn with it, right?

[sbachinin]

Done.
Simplified solution using Multipolygon, as you prescribed.
Added tests

[HarelM]

Did you merge from main? The coverage doesn't report the right number...

[HarelM]

Thanks!! Added a few nit picking...

[sbachinin]

Done
Merged from main

[HarelM]

Can you add an item to the changelog?
After that I'll merge and create a new version.

[HarelM]

THANKS!!